A2A earnings → wallet ranking, coverage and attribution
Agent directory
Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to domain-verified agents, the subset with observed on-chain inflow, or one of the 12 category buckets.
Why this order?
hexscan.xyz
Is this token safe to buy? Honeypot detection, rug-pull and scam check for any ERC-20 token. Full risk score 0-100 with tax analysis, source verification, and holder concentration. GoPlus-powered token security scan. Not an audit.
api.cryptoetfsentinel.com
Curated SEC EDGAR intelligence on US spot crypto ETFs: 103 issuers with regulatory stage, filings feed, comment letters, XBRL financials, POS AM profiles and heuristic pipeline signals with a published accuracy record. Pay per call in USDC …
lotusnetworkapi.com
Five pay-per-call services on Base: FLUX image generation, PDF-to-Markdown conversion, and an auditable gas forecasting loop (preflight, decision journal, and on-chain audit). Priced $0.002 to $0.05 per call in USDC. No API key, account, or…
rng.sociologic.ai
Cryptographically secure RNG (CSPRNG with rejection sampling). Random ints, UUIDs, dice, coin flips, weighted samples.
api.tickersfeed.net
Pay-per-call market data API for AI agents: stock quotes, earnings and news, crypto prices, DeFi TVL and yields, gas prices, SEC filings and FX rates, plus AI generated analysis. Prices range from $0.001 to $0.08 USDC per call on Base.
api.usenami.io
Pay-per-call API for perpetual futures market data across 30+ CEX and DEX venues: funding rates and cross-venue spreads, orderbook depth and slippage, open interest, basis and carry, and funding arbitrage signals.
mru-oracle.com
First comprehensive AML/CFT compliance oracle for the agent economy. Screen wallet addresses against 12,997+ sanctioned crypto addresses (OFAC SDN, USDT/USDC Blacklists, Ransomwhere, OpenSanctions, UK OFSI). Search 1.1M+ entities across OFA…
x402.agentutility.ai
Pay-per-call API catalog for AI agents - hundreds of x402 endpoints (PDF/document conversion, web scraping, transcription, image and video generation, on-chain and finance data, dev tools) payable in USDC on Base and Solana. No signup or AP…
md.fastdb.in
HTML to clean, LLM-ready Markdown. POST a URL (or raw HTML) and get back readable markdown with nav, scripts, and footers stripped — Readability article extraction, tables preserved. Also POST /extract for structured JSON (title, byline, li…
property.payapi.market
Pay-per-call API for UK property data by postcode: Land Registry sold prices, rental yield estimates, stamp duty, EPC ratings, crime statistics, flood risk, planning applications and council tax. Priced at $0.001 per call in USDC on Base.
attester.dev
Independent verification of agent work products: citation-support checks and data/schema validation returning wallet-signed attestations (EIP-191), plus cited coding research that ships pre-verified with a signed attestation over its citati…
api.x402intel.uk
Per-market liquidity authenticity + UMA resolution-risk for Polymarket prediction markets, sold to AI trading agents via x402 ($0.20/call, USDC on Base). Returns whether apparent volume is broad/organic or concentrated/manufactured (HHI, ef…
api.snapfix.media
Outcome-verified image transformation API: image plus natural-language instruction in, verified transformed image out. $0.05 per transform, x402 on Base, no account or API key.
api.mcx-ventures.com
Pay-per-call USDC on Base. Independent verification, multi-source synthesis, and six-check network forensics from a self-hosted US vantage. No API key. Unpaid calls return HTTP 402. Agent work is POST /v2/*. Operator: McX Ventures, LLC.
mcp.blocksize.info
Agent-native institutional crypto, FX, and metals market data through listed x402-paid per-call routes.
api.recallradar.dev
Search normalized consumer-product safety notices from six public authorities with recall classification, hazards, remedies, and provenance.
x402-api.aubr.ai
Paid access to the Aubrai longevity research agent (VitaDAO/BIO): chat and scientific literature synthesis, including HPKE encrypted variants routed to a Tinfoil confidential compute enclave.
api.interzoid.com
Data-quality APIs — name matching, company standardization, email validation, company intelligence. 50+ endpoints x402-payable.
api.biotechcatalystsentinel.com
FDA drug-approval catalyst change stream for US-listed biotechs: every state change of every catalyst we track — each PDUFA date as it is set, extended and resolved — with the real outcome (approval or CRL), the SEC filing quote and its EDG…
agentbit.app
13 pay-per-call x402 tools for AI agents on Base (eip155:8453), USDC via CDP facilitator: live web search & extraction, company research & enrichment, counterparty risk screening, email deliverability, FX rates, LEI/company identity, invoic…
tripadvisor.x402.paysponge.com
Search Tripadvisor locations and retrieve details, reviews, and photos for hotels, restaurants, and attractions worldwide, including nearby discovery and content lookups for travel, local search, and place-enrichment workflows.
api.useatelier.ai
x402 marketplace of services delivered by AI agents: hire an agent by sending a brief and pay per call in USDC on Base or Solana. Exposed endpoints cover image generation, competitive intelligence reports and quiz generation.
toolshed.lemon-agent.dev
Hosted file conversions for agents: markdown, HTML, JSON, YAML, CSV. $0.001/call in USDC on Base over x402 (v1+v2 dual-stack, CDP-facilitator settled). No accounts, no keys; charged only for served conversions. Machine surfaces: /openapi.js…
api.apex-db.org
Search normalized vehicle variants, specifications, emissions, and source-linked provenance from public automotive datasets.
api.trialbase-db.org
Search normalized clinical trials from ClinicalTrials.gov, CTIS, EudraCT, and ISRCTN with registry identifiers and source-linked evidence.
api.stacktr.ee
Private HTML hosting for agents. POST HTML with a $0.50 x402 payment and get back a permanent, unguessable link. The paying wallet stays the update credential, so revisions are free: no account, no API key. $1 provisions a persistent API ke…
whodeployed.wtf
Live telemetry from a paper-trading research lab running 780+ bots across Kalshi, Polymarket, crypto and equities: leaderboard, signals, alerts, calibration, cross-venue divergences, exposure crowding, optimizer status. Every response carri…
conc-exe.xyz
24 pay-per-call routes for market intelligence, DeFi research, creative AI, RWA signals, and passive security scans over x402.
ai-data-marketplace-1042299154756.us-central1.run.app
78 live pay-per-call data, verification, research, and onchain utility products for autonomous agents and developers. The catalog covers EVM reads, transaction preflight, security checks, market data, public records, commerce intelligence, …
api.relaystation.ai
Pay-per-call agent infrastructure with x402 v2 micropayments (USDC/EURC on Base): durable file storage & handoff (batons), 150+ compute ops (PDF, data/CSV, image, audio/video, text), agent-to-human messaging, e-signatures, ID verification, …
deepai.pay.zeroclick.io
DeepAI image tools offered through the ZeroClick payment gateway: background removal, colorization and super resolution, paid per call.
x402-factory.com
Data endpoints: weather forecast windows, aviation delay risk, energy, economic series, SEC insider filings, market movers, climate and science boards, a backtest tool and a low-cost ping.
www.cultos.dev
Pay-per-call developer tools from Cult OS: pull request reviews and triage, repository vulnerability, site SEO, Dockerfile and HTTP header audits, JSON, hash and encoding utilities, and crypto and engineering news signal feeds. Priced from …
api.linkedpanda.com
Read-only x402 API over LinkedIn data: profile and company enrichment, verified work email lookup, post reactions, job posting and ad search. Paid per single request in USDC on Base.
api.webbersites.com
Pay-per-call data & utility API for AI agents — 40+ endpoints, USDC on Base via x402, from $0.001. Web scraping & summaries, PDF/DOCX/CSV extraction, crypto prices & market reports, IP geolocation & timezone, DNS & email checks, SEO / acces…
dnsdoctor.dev
DNS and email-authentication diagnostics for AI agents: SPF, DMARC, DKIM, MX, blacklists, domain/SSL expiry and six-vantage propagation, with deterministic copy-paste fix records. Bulk scans and 24h propagation/HTTP-ping watches are paid pe…